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22#include "au0828.h"
23
24#include <linux/module.h>
25#include <linux/slab.h>
26#include <linux/init.h>
27#include <linux/device.h>
28#include <media/v4l2-common.h>
29#include <media/tuner.h>
30
31#include "au8522.h"
32#include "xc5000.h"
33#include "mxl5007t.h"
34#include "tda18271.h"
35
36static int preallocate_big_buffers;
37module_param_named(preallocate_big_buffers, preallocate_big_buffers, int, 0644);
38MODULE_PARM_DESC(preallocate_big_buffers, "Preallocate the larger transfer buffers at module load time");
39
40DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
41
42#define _AU0828_BULKPIPE 0x83
43#define _BULKPIPESIZE 0xe522
44
45static u8 hauppauge_hvr950q_led_states[] = {
46 0x00,
47 0x02,
48 0x04,
49};
50
51static struct au8522_led_config hauppauge_hvr950q_led_cfg = {
52 .gpio_output = 0x00e0,
53 .gpio_output_enable = 0x6006,
54 .gpio_output_disable = 0x0660,
55
56 .gpio_leds = 0x00e2,
57 .led_states = hauppauge_hvr950q_led_states,
58 .num_led_states = sizeof(hauppauge_hvr950q_led_states),
59
60 .vsb8_strong = 20 * 10,
61 .qam64_strong = 25 * 10,
62 .qam256_strong = 32 * 10,
63};
64
65static struct au8522_config hauppauge_hvr950q_config = {
66 .demod_address = 0x8e >> 1,
67 .status_mode = AU8522_DEMODLOCKING,
68 .qam_if = AU8522_IF_6MHZ,
69 .vsb_if = AU8522_IF_6MHZ,
70 .led_cfg = &hauppauge_hvr950q_led_cfg,
71};
72
73static struct au8522_config fusionhdtv7usb_config = {
74 .demod_address = 0x8e >> 1,
75 .status_mode = AU8522_DEMODLOCKING,
76 .qam_if = AU8522_IF_6MHZ,
77 .vsb_if = AU8522_IF_6MHZ,
78};
79
80static struct au8522_config hauppauge_woodbury_config = {
81 .demod_address = 0x8e >> 1,
82 .status_mode = AU8522_DEMODLOCKING,
83 .qam_if = AU8522_IF_4MHZ,
84 .vsb_if = AU8522_IF_3_25MHZ,
85};
86
87static struct xc5000_config hauppauge_xc5000a_config = {
88 .i2c_address = 0x61,
89 .if_khz = 6000,
90 .chip_id = XC5000A,
91 .output_amp = 0x8f,
92};
93
94static struct xc5000_config hauppauge_xc5000c_config = {
95 .i2c_address = 0x61,
96 .if_khz = 6000,
97 .chip_id = XC5000C,
98 .output_amp = 0x8f,
99};
100
101static struct mxl5007t_config mxl5007t_hvr950q_config = {
102 .xtal_freq_hz = MxL_XTAL_24_MHZ,
103 .if_freq_hz = MxL_IF_6_MHZ,
104};
105
106static struct tda18271_config hauppauge_woodbury_tunerconfig = {
107 .gate = TDA18271_GATE_DIGITAL,
108};
109
110static void au0828_restart_dvb_streaming(struct work_struct *work);
111
112
113static void urb_completion(struct urb *purb)
114{
115 struct au0828_dev *dev = purb->context;
116 int ptype = usb_pipetype(purb->pipe);
117 unsigned char *ptr;
118
119 dprintk(2, "%s: %d\n", __func__, purb->actual_length);
120
121 if (!dev) {
122 dprintk(2, "%s: no dev!\n", __func__);
123 return;
124 }
125
126 if (!dev->urb_streaming) {
127 dprintk(2, "%s: not streaming!\n", __func__);
128 return;
129 }
130
131 if (ptype != PIPE_BULK) {
132 pr_err("%s: Unsupported URB type %d\n",
133 __func__, ptype);
134 return;
135 }
136
137
138
139 ptr = purb->transfer_buffer;
140 if (purb->actual_length > 0 && ptr[0] != 0x47) {
141 dprintk(1, "Need to restart streaming %02x len=%d!\n",
142 ptr[0], purb->actual_length);
143 schedule_work(&dev->restart_streaming);
144 return;
145 }
146
147
148 dvb_dmx_swfilter_packets(&dev->dvb.demux,
149 purb->transfer_buffer, purb->actual_length / 188);
150
151
152 memset(purb->transfer_buffer, 0, URB_BUFSIZE);
153
154
155 usb_submit_urb(purb, GFP_ATOMIC);
156}
157
158static int stop_urb_transfer(struct au0828_dev *dev)
159{
160 int i;
161
162 dprintk(2, "%s()\n", __func__);
163
164 if (!dev->urb_streaming)
165 return 0;
166
167 dev->urb_streaming = false;
168 for (i = 0; i < URB_COUNT; i++) {
169 if (dev->urbs[i]) {
170 usb_kill_urb(dev->urbs[i]);
171 if (!preallocate_big_buffers)
172 kfree(dev->urbs[i]->transfer_buffer);
173
174 usb_free_urb(dev->urbs[i]);
175 }
176 }
177
178 return 0;
179}
180
181static int start_urb_transfer(struct au0828_dev *dev)
182{
183 struct urb *purb;
184 int i, ret;
185
186 dprintk(2, "%s()\n", __func__);
187
188 if (dev->urb_streaming) {
189 dprintk(2, "%s: bulk xfer already running!\n", __func__);
190 return 0;
191 }
192
193 for (i = 0; i < URB_COUNT; i++) {
194
195 dev->urbs[i] = usb_alloc_urb(0, GFP_KERNEL);
196 if (!dev->urbs[i])
197 return -ENOMEM;
198
199 purb = dev->urbs[i];
200
201 if (preallocate_big_buffers)
202 purb->transfer_buffer = dev->dig_transfer_buffer[i];
203 else
204 purb->transfer_buffer = kzalloc(URB_BUFSIZE,
205 GFP_KERNEL);
206
207 if (!purb->transfer_buffer) {
208 usb_free_urb(purb);
209 dev->urbs[i] = NULL;
210 ret = -ENOMEM;
211 pr_err("%s: failed big buffer allocation, err = %d\n",
212 __func__, ret);
213 return ret;
214 }
215
216 purb->status = -EINPROGRESS;
217 usb_fill_bulk_urb(purb,
218 dev->usbdev,
219 usb_rcvbulkpipe(dev->usbdev,
220 _AU0828_BULKPIPE),
221 purb->transfer_buffer,
222 URB_BUFSIZE,
223 urb_completion,
224 dev);
225
226 }
227
228 for (i = 0; i < URB_COUNT; i++) {
229 ret = usb_submit_urb(dev->urbs[i], GFP_ATOMIC);
230 if (ret != 0) {
231 stop_urb_transfer(dev);
232 pr_err("%s: failed urb submission, err = %d\n",
233 __func__, ret);
234 return ret;
235 }
236 }
237
238 dev->urb_streaming = true;
239 return 0;
240}
241
242static void au0828_start_transport(struct au0828_dev *dev)
243{
244 au0828_write(dev, 0x608, 0x90);
245 au0828_write(dev, 0x609, 0x72);
246 au0828_write(dev, 0x60a, 0x71);
247 au0828_write(dev, 0x60b, 0x01);
248
249}
250
251static void au0828_stop_transport(struct au0828_dev *dev, int full_stop)
252{
253 if (full_stop) {
254 au0828_write(dev, 0x608, 0x00);
255 au0828_write(dev, 0x609, 0x00);
256 au0828_write(dev, 0x60a, 0x00);
257 }
258 au0828_write(dev, 0x60b, 0x00);
259}
260
261static int au0828_dvb_start_feed(struct dvb_demux_feed *feed)
262{
263 struct dvb_demux *demux = feed->demux;
264 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
265 struct au0828_dvb *dvb = &dev->dvb;
266 int ret = 0;
267
268 dprintk(1, "%s()\n", __func__);
269
270 if (!demux->dmx.frontend)
271 return -EINVAL;
272
273 if (dvb->frontend) {
274 mutex_lock(&dvb->lock);
275 dvb->start_count++;
276 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
277 dvb->start_count, dvb->stop_count);
278 if (dvb->feeding++ == 0) {
279
280 au0828_start_transport(dev);
281 ret = start_urb_transfer(dev);
282 if (ret < 0) {
283 au0828_stop_transport(dev, 0);
284 dvb->feeding--;
285 }
286 }
287 mutex_unlock(&dvb->lock);
288 }
289
290 return ret;
291}
292
293static int au0828_dvb_stop_feed(struct dvb_demux_feed *feed)
294{
295 struct dvb_demux *demux = feed->demux;
296 struct au0828_dev *dev = (struct au0828_dev *) demux->priv;
297 struct au0828_dvb *dvb = &dev->dvb;
298 int ret = 0;
299
300 dprintk(1, "%s()\n", __func__);
301
302 if (dvb->frontend) {
303 cancel_work_sync(&dev->restart_streaming);
304
305 mutex_lock(&dvb->lock);
306 dvb->stop_count++;
307 dprintk(1, "%s(), start_count: %d, stop_count: %d\n", __func__,
308 dvb->start_count, dvb->stop_count);
309 if (dvb->feeding > 0) {
310 dvb->feeding--;
311 if (dvb->feeding == 0) {
312
313 ret = stop_urb_transfer(dev);
314 au0828_stop_transport(dev, 0);
315 }
316 }
317 mutex_unlock(&dvb->lock);
318 }
319
320 return ret;
321}
322
323static void au0828_restart_dvb_streaming(struct work_struct *work)
324{
325 struct au0828_dev *dev = container_of(work, struct au0828_dev,
326 restart_streaming);
327 struct au0828_dvb *dvb = &dev->dvb;
328
329 if (!dev->urb_streaming)
330 return;
331
332 dprintk(1, "Restarting streaming...!\n");
333
334 mutex_lock(&dvb->lock);
335
336
337 stop_urb_transfer(dev);
338 au0828_stop_transport(dev, 1);
339
340
341 au0828_start_transport(dev);
342 start_urb_transfer(dev);
343
344 mutex_unlock(&dvb->lock);
345}
346
347static int au0828_set_frontend(struct dvb_frontend *fe)
348{
349 struct au0828_dev *dev = fe->dvb->priv;
350 struct au0828_dvb *dvb = &dev->dvb;
351 int ret, was_streaming;
352
353 mutex_lock(&dvb->lock);
354 was_streaming = dev->urb_streaming;
355 if (was_streaming) {
356 au0828_stop_transport(dev, 1);
357
358
359
360
361
362 mutex_unlock(&dvb->lock);
363 cancel_work_sync(&dev->restart_streaming);
364 mutex_lock(&dvb->lock);
365
366 stop_urb_transfer(dev);
367 }
368 mutex_unlock(&dvb->lock);
369
370 ret = dvb->set_frontend(fe);
371
372 if (was_streaming) {
373 mutex_lock(&dvb->lock);
374 au0828_start_transport(dev);
375 start_urb_transfer(dev);
376 mutex_unlock(&dvb->lock);
377 }
378
379 return ret;
380}
381
382static int dvb_register(struct au0828_dev *dev)
383{
384 struct au0828_dvb *dvb = &dev->dvb;
385 int result;
386
387 dprintk(1, "%s()\n", __func__);
388
389 if (preallocate_big_buffers) {
390 int i;
391 for (i = 0; i < URB_COUNT; i++) {
392 dev->dig_transfer_buffer[i] = kzalloc(URB_BUFSIZE,
393 GFP_KERNEL);
394
395 if (!dev->dig_transfer_buffer[i]) {
396 result = -ENOMEM;
397
398 pr_err("failed buffer allocation (errno = %d)\n",
399 result);
400 goto fail_adapter;
401 }
402 }
403 }
404
405 INIT_WORK(&dev->restart_streaming, au0828_restart_dvb_streaming);
406
407
408 result = dvb_register_adapter(&dvb->adapter,
409 KBUILD_MODNAME, THIS_MODULE,
410 &dev->usbdev->dev, adapter_nr);
411 if (result < 0) {
412 pr_err("dvb_register_adapter failed (errno = %d)\n",
413 result);
414 goto fail_adapter;
415 }
416
417#ifdef CONFIG_MEDIA_CONTROLLER_DVB
418 dvb->adapter.mdev = dev->media_dev;
419#endif
420
421 dvb->adapter.priv = dev;
422
423
424 result = dvb_register_frontend(&dvb->adapter, dvb->frontend);
425 if (result < 0) {
426 pr_err("dvb_register_frontend failed (errno = %d)\n",
427 result);
428 goto fail_frontend;
429 }
430
431
432 dvb->set_frontend = dvb->frontend->ops.set_frontend;
433 dvb->frontend->ops.set_frontend = au0828_set_frontend;
434
435
436 dvb->demux.dmx.capabilities =
437 DMX_TS_FILTERING | DMX_SECTION_FILTERING |
438 DMX_MEMORY_BASED_FILTERING;
439 dvb->demux.priv = dev;
440 dvb->demux.filternum = 256;
441 dvb->demux.feednum = 256;
442 dvb->demux.start_feed = au0828_dvb_start_feed;
443 dvb->demux.stop_feed = au0828_dvb_stop_feed;
444 result = dvb_dmx_init(&dvb->demux);
445 if (result < 0) {
446 pr_err("dvb_dmx_init failed (errno = %d)\n", result);
447 goto fail_dmx;
448 }
449
450 dvb->dmxdev.filternum = 256;
451 dvb->dmxdev.demux = &dvb->demux.dmx;
452 dvb->dmxdev.capabilities = 0;
453 result = dvb_dmxdev_init(&dvb->dmxdev, &dvb->adapter);
454 if (result < 0) {
455 pr_err("dvb_dmxdev_init failed (errno = %d)\n", result);
456 goto fail_dmxdev;
457 }
458
459 dvb->fe_hw.source = DMX_FRONTEND_0;
460 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_hw);
461 if (result < 0) {
462 pr_err("add_frontend failed (DMX_FRONTEND_0, errno = %d)\n",
463 result);
464 goto fail_fe_hw;
465 }
466
467 dvb->fe_mem.source = DMX_MEMORY_FE;
468 result = dvb->demux.dmx.add_frontend(&dvb->demux.dmx, &dvb->fe_mem);
469 if (result < 0) {
470 pr_err("add_frontend failed (DMX_MEMORY_FE, errno = %d)\n",
471 result);
472 goto fail_fe_mem;
473 }
474
475 result = dvb->demux.dmx.connect_frontend(&dvb->demux.dmx, &dvb->fe_hw);
476 if (result < 0) {
477 pr_err("connect_frontend failed (errno = %d)\n", result);
478 goto fail_fe_conn;
479 }
480
481
482 dvb_net_init(&dvb->adapter, &dvb->net, &dvb->demux.dmx);
483
484 dvb->start_count = 0;
485 dvb->stop_count = 0;
486
487 result = dvb_create_media_graph(&dvb->adapter, false);
488 if (result < 0)
489 goto fail_create_graph;
490
491 return 0;
492
493fail_create_graph:
494 dvb_net_release(&dvb->net);
495fail_fe_conn:
496 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
497fail_fe_mem:
498 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
499fail_fe_hw:
500 dvb_dmxdev_release(&dvb->dmxdev);
501fail_dmxdev:
502 dvb_dmx_release(&dvb->demux);
503fail_dmx:
504 dvb_unregister_frontend(dvb->frontend);
505fail_frontend:
506 dvb_frontend_detach(dvb->frontend);
507 dvb_unregister_adapter(&dvb->adapter);
508fail_adapter:
509
510 if (preallocate_big_buffers) {
511 int i;
512 for (i = 0; i < URB_COUNT; i++)
513 kfree(dev->dig_transfer_buffer[i]);
514 }
515
516 return result;
517}
518
519void au0828_dvb_unregister(struct au0828_dev *dev)
520{
521 struct au0828_dvb *dvb = &dev->dvb;
522
523 dprintk(1, "%s()\n", __func__);
524
525 if (dvb->frontend == NULL)
526 return;
527
528 cancel_work_sync(&dev->restart_streaming);
529
530 dvb_net_release(&dvb->net);
531 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_mem);
532 dvb->demux.dmx.remove_frontend(&dvb->demux.dmx, &dvb->fe_hw);
533 dvb_dmxdev_release(&dvb->dmxdev);
534 dvb_dmx_release(&dvb->demux);
535 dvb_unregister_frontend(dvb->frontend);
536 dvb_frontend_detach(dvb->frontend);
537 dvb_unregister_adapter(&dvb->adapter);
538
539 if (preallocate_big_buffers) {
540 int i;
541 for (i = 0; i < URB_COUNT; i++)
542 kfree(dev->dig_transfer_buffer[i]);
543 }
544 dvb->frontend = NULL;
545}
546
547
548
549
550
551int au0828_dvb_register(struct au0828_dev *dev)
552{
553 struct au0828_dvb *dvb = &dev->dvb;
554 int ret;
555
556 dprintk(1, "%s()\n", __func__);
557
558
559 switch (dev->boardnr) {
560 case AU0828_BOARD_HAUPPAUGE_HVR850:
561 case AU0828_BOARD_HAUPPAUGE_HVR950Q:
562 dvb->frontend = dvb_attach(au8522_attach,
563 &hauppauge_hvr950q_config,
564 &dev->i2c_adap);
565 if (dvb->frontend != NULL)
566 switch (dev->board.tuner_type) {
567 default:
568 case TUNER_XC5000:
569 dvb_attach(xc5000_attach, dvb->frontend,
570 &dev->i2c_adap,
571 &hauppauge_xc5000a_config);
572 break;
573 case TUNER_XC5000C:
574 dvb_attach(xc5000_attach, dvb->frontend,
575 &dev->i2c_adap,
576 &hauppauge_xc5000c_config);
577 break;
578 }
579 break;
580 case AU0828_BOARD_HAUPPAUGE_HVR950Q_MXL:
581 dvb->frontend = dvb_attach(au8522_attach,
582 &hauppauge_hvr950q_config,
583 &dev->i2c_adap);
584 if (dvb->frontend != NULL)
585 dvb_attach(mxl5007t_attach, dvb->frontend,
586 &dev->i2c_adap, 0x60,
587 &mxl5007t_hvr950q_config);
588 break;
589 case AU0828_BOARD_HAUPPAUGE_WOODBURY:
590 dvb->frontend = dvb_attach(au8522_attach,
591 &hauppauge_woodbury_config,
592 &dev->i2c_adap);
593 if (dvb->frontend != NULL)
594 dvb_attach(tda18271_attach, dvb->frontend,
595 0x60, &dev->i2c_adap,
596 &hauppauge_woodbury_tunerconfig);
597 break;
598 case AU0828_BOARD_DVICO_FUSIONHDTV7:
599 dvb->frontend = dvb_attach(au8522_attach,
600 &fusionhdtv7usb_config,
601 &dev->i2c_adap);
602 if (dvb->frontend != NULL) {
603 dvb_attach(xc5000_attach, dvb->frontend,
604 &dev->i2c_adap,
605 &hauppauge_xc5000a_config);
606 }
607 break;
608 default:
609 pr_warn("The frontend of your DVB/ATSC card isn't supported yet\n");
610 break;
611 }
612 if (NULL == dvb->frontend) {
613 pr_err("%s() Frontend initialization failed\n",
614 __func__);
615 return -1;
616 }
617
618 dvb->frontend->callback = au0828_tuner_callback;
619
620
621 ret = dvb_register(dev);
622 if (ret < 0) {
623 if (dvb->frontend->ops.release)
624 dvb->frontend->ops.release(dvb->frontend);
625 dvb->frontend = NULL;
626 return ret;
627 }
628
629 return 0;
630}
631
632void au0828_dvb_suspend(struct au0828_dev *dev)
633{
634 struct au0828_dvb *dvb = &dev->dvb;
635 int rc;
636
637 if (dvb->frontend) {
638 if (dev->urb_streaming) {
639 cancel_work_sync(&dev->restart_streaming);
640
641 mutex_lock(&dvb->lock);
642 stop_urb_transfer(dev);
643 au0828_stop_transport(dev, 1);
644 mutex_unlock(&dvb->lock);
645 dev->need_urb_start = true;
646 }
647
648 rc = dvb_frontend_suspend(dvb->frontend);
649 pr_info("au0828_dvb_suspend(): Suspending DVB fe %d\n", rc);
650 }
651}
652
653void au0828_dvb_resume(struct au0828_dev *dev)
654{
655 struct au0828_dvb *dvb = &dev->dvb;
656 int rc;
657
658 if (dvb->frontend) {
659
660 rc = dvb_frontend_resume(dvb->frontend);
661 pr_info("au0828_dvb_resume(): Resuming DVB fe %d\n", rc);
662 if (dev->need_urb_start) {
663
664 mutex_lock(&dvb->lock);
665 au0828_start_transport(dev);
666 start_urb_transfer(dev);
667 mutex_unlock(&dvb->lock);
668 }
669 }
670}
671
